The tool: ProgrammableTooltip.com Back in 2019, I just joined Stripe and worked on Billing Analytics. I was working the timezone part of it. Side note: daylight saving is insane. I found myself needing to convert epoch-from-millis to human-readable date extremely often when I look at the Chrome's

I finally set up IntelliJ to be able to run a FunSpec test. For so long, I didn't know why it didn't work until I embarked on a short journey to find out. My FunSpec test is often complex with set up code and layers of

Or things that are not mathematically precise will cause you pain down the line.

Let's set up the problem first. You have a list of posts and you want to show them "infinite-scroll"-style sorting from the newest post to the oldest post. Well, obviously, you can't just load every single post into the page at once. Therefore,